Engine Building

Ecotec Valve Spring Coil Bind and Maximum Valve Lift

featured Ecotec Valve Spring Coil Bind and Maximum Valve Lift

Understand Ecotec valve spring coil bind, mechanical travel, recommended maximum lift, coil-bind clearance, and why BK Racing advertises a conservative .520" operating limit instead of the system's measured mechanical capability.

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Understanding Ecotec Valve Spring Rate

Understanding Ecotec Valve Spring Rate

Valve spring rate explains how quickly spring pressure increases as an Ecotec valve opens. Learn how rate affects open pressure, camshaft compatibility, high-RPM valve control, and usable spring travel.

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Ecotec Valve Spring Installed Height: Why It Matters

Ecotec Valve Spring Installed Height: Why It Matters

Valve spring pressure depends on installed height. Learn how installed height affects Ecotec seat pressure, open pressure, spring travel, coil bind and high-lift camshaft compatibility.

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Ecotec Valve Spring Seat Pressure vs. Open Pressure

Ecotec Valve Spring Seat Pressure vs. Open Pressure

Seat pressure and open pressure measure two different parts of an Ecotec valve spring's operating range. Learn why both matter when comparing springs for camshafts, high RPM, boost, and racing.

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Understanding GM Ecotec Valve Spring Specifications

Understanding GM Ecotec Valve Spring Specifications

Learn how to read GM Ecotec valve spring specifications, including installed height, seat pressure, open pressure, spring rate, coil bind, mechanical travel and the critical difference between mechanical lift and...

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How GM Ecotec Valve Springs Work

How GM Ecotec Valve Springs Work

Learn how GM Ecotec valve springs control the valves, roller finger followers and high-RPM valvetrain, and how spring pressure, installed height, camshaft lift, spring rate and coil bind affect performance.

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